require File.expand_path('../../../spec_helper', __FILE__)

ruby_version_is "1.9" do
  describe "Fixnum#even?" do
    it "is true for zero" do
      0.even?.should be_true
    end

    it "is true for even positive Fixnums" do
      4.even?.should be_true
    end

    it "is true for even negative Fixnums" do
      (-4).even?.should be_true
    end

    it "is false for odd positive Fixnums" do
      5.even?.should be_false
    end

    it "is false for odd negative Fixnums" do
      (-5).even?.should be_false
    end
  end
end
